Asynchronous payload mapping using direct phase transfer

Details Asynchronous payload mapping using direct phase transfer Asynchronous payload mapping using direct phase transfer

2006-06-27

2006-06-27

Chin, Wellington (Department: 2664)

Multiplex communications

Communication techniques for information carried in plural...

Adaptive

C370S535000, C370S536000, C370S252000, C370S232000

Reexamination Certificate

active

07068679

ABSTRACT:
The present invention involves the passing of clock information from a point where a tributary payload is mapped into a carrier to a point where a tributary payload is de-mapped from the carrier. A synchronization signal is generated at the mapping end. Rather than sending clock phase information implicitly by means of the data, as is normally the case, a value of the synchronization signal at a given time, is sent explicitly, independent from the payload data.

REFERENCES:
patent: 5142529 (1992-08-01), Parruck et al.
patent: 5404380 (1995-04-01), Powell et al.
patent: 5535251 (1996-07-01), Sugawara
patent: 5572515 (1996-11-01), Williamson et al.
patent: 5841760 (1998-11-01), Martin et al.
patent: 6580731 (2003-06-01), Denton
European Telecommunications Standard Institute, “Transmission and Multiplexing (TM); Synchronous Digital Hierarchy (SDH); Multiplexing Structure”, Apr. 1997, pp. 1-17.

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